Matrix Capital Management Company, LP - Nov 2, 2021 Form 4 Insider Report for Aura Biosciences, Inc. (AURA)

Role: 10%+ Owner
Signature: Matrix Capital Management Company, LP, by: /s/ David E. Goel, its Managing General Partner
Stock symbol: AURA
Transactions as of: Nov 2, 2021
Transactions value $: $24,990,000
Form type: 4
Date filed: 11/4/2021, 04:44 PM
Previous filing: Oct 28, 2021
Next filing: Jun 3, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AURA	Common Stock, par value $0.00001 per share ("Common Stock")	Conversion of derivative security		+2.33M			2.33M	Nov 2, 2021	See footnotes	F1, F2, F3
transaction	AURA	Common Stock	Purchase	$25M	+1.79M	+76.68%	$14.00	4.11M	Nov 2, 2021	See footnotes	F2, F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AURA	Series E Convertible Preferred Stock	Conversion of derivative security	$0	-2.33M	-100%	$0.00^*	0	Nov 2, 2021	Common Stock	2.33M		See footnotes	F1, F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Series E Convertible Preferred Stock was convertible at any time, at the holder's election on a 1-for-1 basis, and did not have an expiration date. The shares of Series E Convertible Preferred Stock automatically converted into shares of Common Stock on a 1-for-1 basis upon the closing of the Issuer's initial public offering.
F2	The securities reported herein are held by Matrix Capital Management Master Fund, LP (the "Matrix Fund"). Matrix Capital Management Company, LP (the "Investment Manager"), a Delaware limited partnership, is the investment advisor to the Matrix Fund. Mr. David E. Goel ("Mr. Goel", and together with the Investment Manager, the "Reporting Persons"), serves as the Managing General Partner of the Investment Manager.
F3	The filing of this statement shall not be deemed an admission that either of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its or his pecuniary interest therein.